How to Grow Double Late Tulip 'Wirosa'
Double Late Tulip 'Wirosa'
Tulipa 'Wirosa'
flowerWirosa is a striking double late tulip featuring deep rose-pink petals with white edges and creamy white flames running through the blooms. This peony-like tulip produces large, heavily ruffled flowers on sturdy stems reaching 20-28 inches tall. It blooms in mid to late spring and is prized for cut flowers and garden display.
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Example Double Late Tulip 'Wirosa' timeline · Pittsburgh, PA (Zone 6b)
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Plant Double Late Tulip 'Wirosa'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Double Late Tulip 'Wirosa' blooms
Around Aug 15≈ 120 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, with best performance in zones 4-7
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Dormancy & Root Development
2-3 monthsBulbs planted in autumn (September-November) begin root development in soil during winter while shoots remain below ground.
Plant in well-draining soil; ensure good drainage to prevent bulb rot. Mulch lightly after soil freezes. Avoid waterlogging.
Emergence & Spring Growth
3-4 weeksShoots emerge from soil as temperatures warm in early spring, developing 2-3 leaves per bulb. Stems elongate rapidly.
Remove winter mulch as shoots emerge. Monitor for slugs and snails. Provide support if wind-exposed.
Bud Formation
2-3 weeksFlower buds develop at stem tips, wrapped in protective sepals. Stems reach full height with visible flower buds.
Apply balanced fertilizer (low nitrogen). Stake or support taller varieties if needed. Ensure adequate sunlight.
Flowering
7-14 daysLarge, peony-like double flowers open with rich rose-pink outer petals and white-edged, creamy white interior petals. Blooms last 1-2 weeks.
Deadhead spent flowers but leave stems intact. Remove any diseased foliage. Provide afternoon shade in hot climates to extend bloom.
Senescence & Foliage Maturation
4-6 weeksFlowers fade; foliage yellows and dies back naturally as bulb stores energy for next season.
Allow foliage to remain until completely brown and dry (4-6 weeks post-bloom). Apply low-nitrogen fertilizer to support bulb regeneration. Gradually reduce watering.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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No cure; remove affected plants. Control aphids with insecticidal soap. Choose virus-free bulbs from reputable suppliers.
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Remove infected foliage and flowers promptly. Improve air circulation. Avoid overhead watering. Apply fungicide if severe.
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Handpick in early morning or evening. Use beer traps, copper tape barriers, or diatomaceous earth around plants.
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Use wire mesh cages around plantings or bulb crates. Plant bulbs in protected raised beds. Apply predator urine deterrents.
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Spray with strong water stream; use insecticidal soap or neem oil if populations persist.
Uses
Edible flower garnish
CulinaryDouble Late tulip petals are mildly sweet and can be used as gourmet garnishes for salads, desserts, and cocktails. Ensure flowers are grown without pesticides if intended for consumption. [source]
Cut flower arrangements
HouseholdWirosa's large, ruffled peony-like blooms are prized for formal bouquets, spring arrangements, and floral design. Cut stems last 7-14 days in a vase with proper care. [source]
Pressed flowers and botanical crafts
CraftThe substantial petals of this tulip press well for botanical art, bookmarks, and scrapbooking projects. Press flowers between newspaper or in a flower press for 2-4 weeks. [source]
Early spring nectar source
WildlifeTulips provide essential nectar for bees, hoverflies, and other pollinators during early spring when few other flowers are available. [source]
Garden display and landscape design
OrnamentalWith its striking bicolor rose-pink and white coloring, Wirosa adds dramatic color to spring borders, raised beds, and container plantings. Excellent for formal gardens and spring color succession planning. [source]
Harvest Tips
Cut stems in early morning when buds show color but are not fully open. Cut above foliage to allow photosynthesis to continue feeding the bulb. Stems will continue opening indoors. For extended vase life (7-10 days), use clean vases, fresh water with floral food, and change water every 2-3 days. After flowering, remove spent blooms but leave stems and foliage until completely senescent to maximize next year's blooms.
Fun Facts
- 🌱 Wirosa is a Double Late tulip, meaning it produces peony-like flowers with multiple layers of petals, unlike single-flowered tulips. This doubling is a natural mutation that creates fuller, longer-lasting blooms.
- 🌱 Tulip 'breaking' historical note: The variegated striping and flaming patterns in some tulips, prized by collectors for centuries, were originally caused by a virus (tulip breaking virus). While modern ornamental tulips like Wirosa are bred for stable color genetics, the virus-caused 'broken' tulips sparked the Dutch tulip mania of the 1600s.
- 🌱 Double Late tulips require a cold period (vernalization) to bloom properly, which is why they're planted in autumn. Bulbs must experience temperatures below 55°F for 12-16 weeks to trigger flowering in spring.
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